I am serving up my web application using NodeJS server (ExpressJS) currently. One of the new requirements is for the users to be able to upload large videos (potentially in gigs) to the server. They will later then be able to download them again. Could I achieve this with the current stack?
I came across tutorials using Multer JS with "multipart/form-data" specified by the front-end. If I use this, would my Express be able to serve up other HTTP requests while writing a giant single video file to the server's disk?
Multer should work fine. It'll stream the data as it comes in over HTTP to a file on disk. It won't lock up your server. Then in your endpoint you have access to that file location and can do whatever you need with it.